package com.atguigu.java;

/**
 * Title: UserDaoImpl
 * Description: TODO
 *
 * @author gejx
 * @version V1.0
 * @date 2021-12-07
 */
public class UserDaoImpl implements UserDao{

    @Override
    public String A(String a, String b) {
        System.out.println("a方法执行了");
        return a+b;
    }

    @Override
    public String B() {
        return "b";
    }
}
